Find the smallest positive integer N

In summary, the smallest positive integer N that satisfies all of the given conditions is 7.420738135... x 10^12, which has 13 digits. The steps to finding this number involve considering its form as 2*3*5*7*11*13*17*19*23*29*31*37(2K+1)^6 and finding the value of K that satisfies all the conditions. It is important to note that N cannot be divisible by 2 because it is an odd number.
  • #1
sfvdsc
5
0
Find the smallest positive integer N that satisfies all of the following conditions:
• N is a square.
• N is a cube.
• N is an odd number.
• N is divisible by twelve prime numbers.
How many digits does this number N have?Please Explain your steps in detail.
 
Physics news on Phys.org
  • #2
Beer induced query follows.
sfvdsc said:
Find the smallest positive integer N that satisfies all of the following conditions:
• N is a square.
• N is a cube.
• N is an odd number.
• N is divisible by twelve prime numbers.
How many digits does this number N have?Please Explain your steps in detail.
What have you done so far?
 
  • #3
jonah said:
Beer induced query follows.

What have you done so far?
Dear Sir, I have been doing some rough, but I was unable to find the answer.

I have attached the rough.

So, in according to this if you can solve the problem. I will be very grateful to you.

The trouble is the divisibility by the first 12 prime numbers,
so it must be a multiple of 2*3*5*7*11*13*17*19*23*29*31*37

To be odd it must look like 2K+1

to be a square it must look like (2K+1)^2, and it must also be a cube
it must contain (2K+1)^6

so, it must have the form:
2*3*5*7*11*13*17*19*23*29*31*37(2K+1)^6
when K = 0, we get
2*3*5*7*11*13*17*19*23*29*31*37(1)^6
= 7.420738135... x 10^12
which would be 13 digits long

Please correct me if I am wrong!

I am really trying, please if anybody can solve this.

So, Please if you can solve this, I can use your answer as a reference and solve other related problems.

Please help me with my situation.
 
  • #4
Just a quick note, if N is odd then it can't be divisible by 2!

-Dan
 

1. What is the definition of a positive integer?

A positive integer is a whole number that is greater than zero.

2. How do you find the smallest positive integer N in a given set of numbers?

To find the smallest positive integer N in a given set of numbers, you can arrange the numbers in ascending order and then look for the first positive integer in the set.

3. What is the significance of finding the smallest positive integer N?

The smallest positive integer N is often used in mathematical calculations and algorithms. It can also be useful in problem-solving and finding the most efficient solutions.

4. Can the smallest positive integer N be a decimal or fraction?

No, the smallest positive integer N must be a whole number and cannot be a decimal or fraction.

5. Is there a specific formula or method for finding the smallest positive integer N?

There is no specific formula for finding the smallest positive integer N. It depends on the given set of numbers and may require different approaches such as sorting or using mathematical operations.

Similar threads

  • Set Theory, Logic, Probability, Statistics
Replies
17
Views
448
  • Precalculus Mathematics Homework Help
Replies
2
Views
961
  • Math POTW for Secondary and High School Students
Replies
1
Views
1K
  • Precalculus Mathematics Homework Help
Replies
9
Views
1K
  • Calculus and Beyond Homework Help
Replies
13
Views
2K
  • Set Theory, Logic, Probability, Statistics
Replies
3
Views
871
Replies
2
Views
1K
Replies
6
Views
816
  • Math Proof Training and Practice
Replies
23
Views
458
  • Calculus and Beyond Homework Help
Replies
5
Views
2K
Back
Top